/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_1.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 13:19:09,586 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 13:19:09,590 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 13:19:09,617 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 13:19:09,618 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 13:19:09,619 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 13:19:09,620 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 13:19:09,622 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 13:19:09,624 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 13:19:09,625 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 13:19:09,626 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 13:19:09,627 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 13:19:09,627 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 13:19:09,628 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 13:19:09,630 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 13:19:09,631 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 13:19:09,632 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 13:19:09,633 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 13:19:09,635 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 13:19:09,637 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 13:19:09,639 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 13:19:09,640 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 13:19:09,641 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 13:19:09,642 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 13:19:09,645 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-21 13:19:09,653 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 13:19:09,654 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 13:19:09,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 13:19:09,656 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-21 13:19:09,679 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 13:19:09,680 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 13:19:09,681 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 13:19:09,681 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 13:19:09,681 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 13:19:09,681 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 13:19:09,682 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 13:19:09,682 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 13:19:09,682 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 13:19:09,682 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 13:19:09,682 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 13:19:09,683 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 13:19:09,683 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 13:19:09,683 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 13:19:09,683 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 13:19:09,683 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 13:19:09,684 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 13:19:09,684 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 13:19:09,685 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 13:19:09,685 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 13:19:09,685 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 13:19:09,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 13:19:09,686 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 13:19:09,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 13:19:09,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 13:19:09,686 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 13:19:09,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 13:19:09,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 13:19:09,687 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 13:19:09,687 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> false [2020-08-21 13:19:09,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 13:19:10,002 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 13:19:10,005 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 13:19:10,007 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 13:19:10,007 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 13:19:10,008 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_1.cil-2.c [2020-08-21 13:19:10,071 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/373aa96aa/9673d641f9b64b52bded319d3e4969d2/FLAG6b6c037e1 [2020-08-21 13:19:10,497 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 13:19:10,498 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_clnt_1.cil-2.c [2020-08-21 13:19:10,509 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/373aa96aa/9673d641f9b64b52bded319d3e4969d2/FLAG6b6c037e1 [2020-08-21 13:19:10,869 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/373aa96aa/9673d641f9b64b52bded319d3e4969d2 [2020-08-21 13:19:10,879 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 13:19:10,881 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 13:19:10,884 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 13:19:10,884 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 13:19:10,889 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 13:19:10,890 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 01:19:10" (1/1) ... [2020-08-21 13:19:10,893 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@768abc93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:19:10, skipping insertion in model container [2020-08-21 13:19:10,894 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 01:19:10" (1/1) ... [2020-08-21 13:19:10,903 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 13:19:10,968 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 13:19:11,232 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 13:19:11,237 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 13:19:11,388 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 13:19:11,403 INFO L208 MainTranslator]: Completed translation [2020-08-21 13:19:11,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:19:11 WrapperNode [2020-08-21 13:19:11,404 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 13:19:11,405 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 13:19:11,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 13:19:11,405 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 13:19:11,419 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:19:11" (1/1) ... [2020-08-21 13:19:11,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:19:11" (1/1) ... [2020-08-21 13:19:11,429 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:19:11" (1/1) ... [2020-08-21 13:19:11,429 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:19:11" (1/1) ... [2020-08-21 13:19:11,440 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:19:11" (1/1) ... [2020-08-21 13:19:11,454 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:19:11" (1/1) ... [2020-08-21 13:19:11,459 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:19:11" (1/1) ... [2020-08-21 13:19:11,463 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 13:19:11,464 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 13:19:11,464 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 13:19:11,464 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 13:19:11,465 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:19:11" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 13:19:11,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 13:19:11,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 13:19:11,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-08-21 13:19:11,535 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 13:19:11,535 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 13:19:11,535 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-08-21 13:19:11,536 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 13:19:11,536 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-08-21 13:19:11,536 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-08-21 13:19:11,536 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 13:19:11,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 13:19:11,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 13:19:11,699 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-08-21 13:19:12,204 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-08-21 13:19:12,204 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-08-21 13:19:12,222 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 13:19:12,222 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-21 13:19:12,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 01:19:12 BoogieIcfgContainer [2020-08-21 13:19:12,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 13:19:12,230 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 13:19:12,230 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 13:19:12,233 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 13:19:12,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 01:19:10" (1/3) ... [2020-08-21 13:19:12,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64d3213d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 01:19:12, skipping insertion in model container [2020-08-21 13:19:12,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:19:11" (2/3) ... [2020-08-21 13:19:12,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64d3213d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 01:19:12, skipping insertion in model container [2020-08-21 13:19:12,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 01:19:12" (3/3) ... [2020-08-21 13:19:12,237 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_1.cil-2.c [2020-08-21 13:19:12,248 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 13:19:12,256 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 13:19:12,270 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 13:19:12,296 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 13:19:12,297 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 13:19:12,297 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 13:19:12,297 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 13:19:12,298 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 13:19:12,298 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 13:19:12,298 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 13:19:12,298 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 13:19:12,321 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states. [2020-08-21 13:19:12,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-08-21 13:19:12,329 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:19:12,330 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 13:19:12,330 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:19:12,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:19:12,335 INFO L82 PathProgramCache]: Analyzing trace with hash 173381458, now seen corresponding path program 1 times [2020-08-21 13:19:12,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:19:12,344 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [28977176] [2020-08-21 13:19:12,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:19:12,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:19:12,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:19:12,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:19:12,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 13:19:12,653 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [28977176] [2020-08-21 13:19:12,656 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:19:12,656 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 13:19:12,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014522439] [2020-08-21 13:19:12,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-21 13:19:12,665 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:19:12,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-21 13:19:12,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-21 13:19:12,685 INFO L87 Difference]: Start difference. First operand 135 states. Second operand 4 states. [2020-08-21 13:19:12,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:19:12,994 INFO L93 Difference]: Finished difference Result 261 states and 436 transitions. [2020-08-21 13:19:12,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-21 13:19:12,996 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2020-08-21 13:19:12,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:19:13,014 INFO L225 Difference]: With dead ends: 261 [2020-08-21 13:19:13,015 INFO L226 Difference]: Without dead ends: 119 [2020-08-21 13:19:13,019 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-21 13:19:13,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-08-21 13:19:13,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2020-08-21 13:19:13,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-08-21 13:19:13,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 176 transitions. [2020-08-21 13:19:13,073 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 176 transitions. Word has length 29 [2020-08-21 13:19:13,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:19:13,074 INFO L479 AbstractCegarLoop]: Abstraction has 119 states and 176 transitions. [2020-08-21 13:19:13,074 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-21 13:19:13,074 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 176 transitions. [2020-08-21 13:19:13,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-08-21 13:19:13,076 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:19:13,076 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 13:19:13,077 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 13:19:13,077 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:19:13,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:19:13,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1901617752, now seen corresponding path program 1 times [2020-08-21 13:19:13,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:19:13,078 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1392130253] [2020-08-21 13:19:13,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:19:13,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:19:13,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:19:13,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:19:13,204 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 13:19:13,205 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1392130253] [2020-08-21 13:19:13,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:19:13,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-21 13:19:13,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60218640] [2020-08-21 13:19:13,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-21 13:19:13,209 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:19:13,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-21 13:19:13,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-21 13:19:13,211 INFO L87 Difference]: Start difference. First operand 119 states and 176 transitions. Second operand 3 states. [2020-08-21 13:19:13,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:19:13,379 INFO L93 Difference]: Finished difference Result 241 states and 363 transitions. [2020-08-21 13:19:13,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-21 13:19:13,380 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 42 [2020-08-21 13:19:13,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:19:13,382 INFO L225 Difference]: With dead ends: 241 [2020-08-21 13:19:13,382 INFO L226 Difference]: Without dead ends: 137 [2020-08-21 13:19:13,384 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-21 13:19:13,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-08-21 13:19:13,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 134. [2020-08-21 13:19:13,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-08-21 13:19:13,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 196 transitions. [2020-08-21 13:19:13,398 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 196 transitions. Word has length 42 [2020-08-21 13:19:13,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:19:13,399 INFO L479 AbstractCegarLoop]: Abstraction has 134 states and 196 transitions. [2020-08-21 13:19:13,399 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-21 13:19:13,399 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 196 transitions. [2020-08-21 13:19:13,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-08-21 13:19:13,401 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:19:13,401 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 13:19:13,401 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 13:19:13,402 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:19:13,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:19:13,402 INFO L82 PathProgramCache]: Analyzing trace with hash 578658705, now seen corresponding path program 1 times [2020-08-21 13:19:13,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:19:13,403 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2102131763] [2020-08-21 13:19:13,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:19:13,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:19:13,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:19:13,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:19:13,499 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-08-21 13:19:13,500 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2102131763] [2020-08-21 13:19:13,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:19:13,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-21 13:19:13,501 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177601340] [2020-08-21 13:19:13,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-21 13:19:13,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:19:13,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-21 13:19:13,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-21 13:19:13,502 INFO L87 Difference]: Start difference. First operand 134 states and 196 transitions. Second operand 3 states. [2020-08-21 13:19:13,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:19:13,644 INFO L93 Difference]: Finished difference Result 274 states and 409 transitions. [2020-08-21 13:19:13,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-21 13:19:13,644 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2020-08-21 13:19:13,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:19:13,647 INFO L225 Difference]: With dead ends: 274 [2020-08-21 13:19:13,647 INFO L226 Difference]: Without dead ends: 155 [2020-08-21 13:19:13,648 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-21 13:19:13,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-08-21 13:19:13,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 151. [2020-08-21 13:19:13,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2020-08-21 13:19:13,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 218 transitions. [2020-08-21 13:19:13,661 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 218 transitions. Word has length 56 [2020-08-21 13:19:13,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:19:13,662 INFO L479 AbstractCegarLoop]: Abstraction has 151 states and 218 transitions. [2020-08-21 13:19:13,662 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-21 13:19:13,662 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 218 transitions. [2020-08-21 13:19:13,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-08-21 13:19:13,664 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:19:13,665 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 13:19:13,665 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 13:19:13,665 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:19:13,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:19:13,665 INFO L82 PathProgramCache]: Analyzing trace with hash -1321928473, now seen corresponding path program 1 times [2020-08-21 13:19:13,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:19:13,666 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1763467220] [2020-08-21 13:19:13,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:19:13,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:19:13,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:19:13,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:19:13,756 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-08-21 13:19:13,756 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1763467220] [2020-08-21 13:19:13,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:19:13,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-21 13:19:13,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814132127] [2020-08-21 13:19:13,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-21 13:19:13,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:19:13,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-21 13:19:13,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-21 13:19:13,759 INFO L87 Difference]: Start difference. First operand 151 states and 218 transitions. Second operand 3 states. [2020-08-21 13:19:13,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:19:13,998 INFO L93 Difference]: Finished difference Result 338 states and 506 transitions. [2020-08-21 13:19:13,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-21 13:19:13,998 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-08-21 13:19:13,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:19:14,003 INFO L225 Difference]: With dead ends: 338 [2020-08-21 13:19:14,003 INFO L226 Difference]: Without dead ends: 201 [2020-08-21 13:19:14,005 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-21 13:19:14,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2020-08-21 13:19:14,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 192. [2020-08-21 13:19:14,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-08-21 13:19:14,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 268 transitions. [2020-08-21 13:19:14,019 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 268 transitions. Word has length 73 [2020-08-21 13:19:14,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:19:14,019 INFO L479 AbstractCegarLoop]: Abstraction has 192 states and 268 transitions. [2020-08-21 13:19:14,019 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-21 13:19:14,020 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 268 transitions. [2020-08-21 13:19:14,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-08-21 13:19:14,022 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:19:14,022 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 13:19:14,022 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 13:19:14,022 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:19:14,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:19:14,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1167600489, now seen corresponding path program 1 times [2020-08-21 13:19:14,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:19:14,023 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1237740534] [2020-08-21 13:19:14,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:19:14,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:19:14,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:19:14,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:19:14,149 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-08-21 13:19:14,150 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1237740534] [2020-08-21 13:19:14,150 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:19:14,150 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-21 13:19:14,150 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937731531] [2020-08-21 13:19:14,151 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-21 13:19:14,151 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:19:14,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-21 13:19:14,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-21 13:19:14,152 INFO L87 Difference]: Start difference. First operand 192 states and 268 transitions. Second operand 3 states. [2020-08-21 13:19:14,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:19:14,274 INFO L93 Difference]: Finished difference Result 392 states and 557 transitions. [2020-08-21 13:19:14,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-21 13:19:14,274 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-08-21 13:19:14,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:19:14,276 INFO L225 Difference]: With dead ends: 392 [2020-08-21 13:19:14,277 INFO L226 Difference]: Without dead ends: 215 [2020-08-21 13:19:14,278 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-21 13:19:14,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2020-08-21 13:19:14,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 211. [2020-08-21 13:19:14,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-08-21 13:19:14,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 292 transitions. [2020-08-21 13:19:14,292 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 292 transitions. Word has length 73 [2020-08-21 13:19:14,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:19:14,293 INFO L479 AbstractCegarLoop]: Abstraction has 211 states and 292 transitions. [2020-08-21 13:19:14,293 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-21 13:19:14,293 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 292 transitions. [2020-08-21 13:19:14,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-08-21 13:19:14,295 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:19:14,295 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 13:19:14,295 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 13:19:14,295 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:19:14,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:19:14,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1476060097, now seen corresponding path program 1 times [2020-08-21 13:19:14,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:19:14,297 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1707584223] [2020-08-21 13:19:14,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:19:14,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:19:14,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:19:14,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:19:14,355 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-08-21 13:19:14,356 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1707584223] [2020-08-21 13:19:14,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:19:14,356 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-21 13:19:14,357 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785014121] [2020-08-21 13:19:14,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-21 13:19:14,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:19:14,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-21 13:19:14,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-21 13:19:14,358 INFO L87 Difference]: Start difference. First operand 211 states and 292 transitions. Second operand 3 states. [2020-08-21 13:19:14,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:19:14,508 INFO L93 Difference]: Finished difference Result 431 states and 607 transitions. [2020-08-21 13:19:14,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-21 13:19:14,508 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 89 [2020-08-21 13:19:14,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:19:14,510 INFO L225 Difference]: With dead ends: 431 [2020-08-21 13:19:14,510 INFO L226 Difference]: Without dead ends: 235 [2020-08-21 13:19:14,511 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-21 13:19:14,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2020-08-21 13:19:14,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 232. [2020-08-21 13:19:14,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-08-21 13:19:14,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 318 transitions. [2020-08-21 13:19:14,523 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 318 transitions. Word has length 89 [2020-08-21 13:19:14,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:19:14,523 INFO L479 AbstractCegarLoop]: Abstraction has 232 states and 318 transitions. [2020-08-21 13:19:14,524 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-21 13:19:14,524 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 318 transitions. [2020-08-21 13:19:14,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-08-21 13:19:14,526 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:19:14,526 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 13:19:14,526 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-21 13:19:14,526 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:19:14,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:19:14,527 INFO L82 PathProgramCache]: Analyzing trace with hash 452791927, now seen corresponding path program 1 times [2020-08-21 13:19:14,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:19:14,528 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1180259041] [2020-08-21 13:19:14,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:19:14,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:19:14,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:19:14,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:19:14,599 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-08-21 13:19:14,600 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1180259041] [2020-08-21 13:19:14,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:19:14,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-21 13:19:14,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986186349] [2020-08-21 13:19:14,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-21 13:19:14,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:19:14,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-21 13:19:14,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-21 13:19:14,602 INFO L87 Difference]: Start difference. First operand 232 states and 318 transitions. Second operand 3 states. [2020-08-21 13:19:14,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:19:14,665 INFO L93 Difference]: Finished difference Result 664 states and 915 transitions. [2020-08-21 13:19:14,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-21 13:19:14,665 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 109 [2020-08-21 13:19:14,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:19:14,669 INFO L225 Difference]: With dead ends: 664 [2020-08-21 13:19:14,669 INFO L226 Difference]: Without dead ends: 447 [2020-08-21 13:19:14,670 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-21 13:19:14,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-08-21 13:19:14,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 447. [2020-08-21 13:19:14,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 447 states. [2020-08-21 13:19:14,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 613 transitions. [2020-08-21 13:19:14,689 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 613 transitions. Word has length 109 [2020-08-21 13:19:14,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:19:14,690 INFO L479 AbstractCegarLoop]: Abstraction has 447 states and 613 transitions. [2020-08-21 13:19:14,690 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-21 13:19:14,691 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 613 transitions. [2020-08-21 13:19:14,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-08-21 13:19:14,693 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:19:14,693 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 13:19:14,694 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-21 13:19:14,694 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:19:14,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:19:14,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1076525473, now seen corresponding path program 1 times [2020-08-21 13:19:14,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:19:14,695 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1451646162] [2020-08-21 13:19:14,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:19:14,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-21 13:19:14,732 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-21 13:19:14,732 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-21 13:19:14,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-21 13:19:14,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 01:19:14 BoogieIcfgContainer [2020-08-21 13:19:14,770 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 13:19:14,773 INFO L168 Benchmark]: Toolchain (without parser) took 3891.03 ms. Allocated memory was 140.5 MB in the beginning and 250.6 MB in the end (delta: 110.1 MB). Free memory was 100.7 MB in the beginning and 196.3 MB in the end (delta: -95.6 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. [2020-08-21 13:19:14,774 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-08-21 13:19:14,775 INFO L168 Benchmark]: CACSL2BoogieTranslator took 520.19 ms. Allocated memory was 140.5 MB in the beginning and 202.4 MB in the end (delta: 61.9 MB). Free memory was 100.5 MB in the beginning and 178.7 MB in the end (delta: -78.2 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-08-21 13:19:14,776 INFO L168 Benchmark]: Boogie Preprocessor took 58.80 ms. Allocated memory is still 202.4 MB. Free memory was 178.7 MB in the beginning and 176.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-08-21 13:19:14,777 INFO L168 Benchmark]: RCFGBuilder took 764.29 ms. Allocated memory is still 202.4 MB. Free memory was 176.5 MB in the beginning and 129.0 MB in the end (delta: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 7.1 GB. [2020-08-21 13:19:14,777 INFO L168 Benchmark]: TraceAbstraction took 2540.50 ms. Allocated memory was 202.4 MB in the beginning and 250.6 MB in the end (delta: 48.2 MB). Free memory was 128.3 MB in the beginning and 196.3 MB in the end (delta: -68.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-21 13:19:14,781 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 520.19 ms. Allocated memory was 140.5 MB in the beginning and 202.4 MB in the end (delta: 61.9 MB). Free memory was 100.5 MB in the beginning and 178.7 MB in the end (delta: -78.2 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 58.80 ms. Allocated memory is still 202.4 MB. Free memory was 178.7 MB in the beginning and 176.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 764.29 ms. Allocated memory is still 202.4 MB. Free memory was 176.5 MB in the beginning and 129.0 MB in the end (delta: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2540.50 ms. Allocated memory was 202.4 MB in the beginning and 250.6 MB in the end (delta: 48.2 MB). Free memory was 128.3 MB in the beginning and 196.3 MB in the end (delta: -68.0 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 543]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L548] int s ; [L552] s = 12292 [L553] CALL ssl3_connect(12292) [L11] int s__info_callback = __VERIFIER_nondet_int() ; [L12] int s__in_handshake = __VERIFIER_nondet_int() ; [L13] int s__state ; [L14] int s__new_session ; [L15] int s__server ; [L16] int s__version = __VERIFIER_nondet_int() ; [L17] int s__type ; [L18] int s__init_num ; [L19] int s__bbio = __VERIFIER_nondet_int() ; [L20] int s__wbio = __VERIFIER_nondet_int() ; [L21] int s__hit = __VERIFIER_nondet_int() ; [L22] int s__rwstate ; [L23] int s__init_buf___0 = 1; [L24] int s__debug = __VERIFIER_nondet_int() ; [L25] int s__shutdown ; [L26] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L27] int s__ctx__stats__sess_connect_renegotiate = __VERIFIER_nondet_int() ; [L28] int s__ctx__stats__sess_connect = __VERIFIER_nondet_int() ; [L29] int s__ctx__stats__sess_hit = __VERIFIER_nondet_int() ; [L30] int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_int() ; [L31] int s__s3__change_cipher_spec ; [L32] int s__s3__flags ; [L33] int s__s3__delay_buf_pop_ret ; [L34] int s__s3__tmp__cert_req = __VERIFIER_nondet_int() ; [L35] int s__s3__tmp__new_compression = __VERIFIER_nondet_int() ; [L36] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L38] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L39] int s__s3__tmp__next_state___0 ; [L40] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int() ; [L41] int s__session__cipher ; [L42] int s__session__compress_meth ; [L43] int buf ; [L44] unsigned long tmp ; [L45] unsigned long l ; [L46] int num1 ; [L47] int cb ; [L48] int ret ; [L49] int new_state ; [L50] int state ; [L51] int skip ; [L52] int tmp___0 ; [L53] int tmp___1 = __VERIFIER_nondet_int() ; [L54] int tmp___2 = __VERIFIER_nondet_int() ; [L55] int tmp___3 = __VERIFIER_nondet_int() ; [L56] int tmp___4 = __VERIFIER_nondet_int() ; [L57] int tmp___5 = __VERIFIER_nondet_int() ; [L58] int tmp___6 = __VERIFIER_nondet_int() ; [L59] int tmp___7 = __VERIFIER_nondet_int() ; [L60] int tmp___8 = __VERIFIER_nondet_int() ; [L61] int tmp___9 = __VERIFIER_nondet_int() ; [L62] int blastFlag ; [L63] int __cil_tmp55 ; [L64] long __cil_tmp56 ; [L65] long __cil_tmp57 ; [L66] long __cil_tmp58 ; [L67] long __cil_tmp59 ; [L68] long __cil_tmp60 ; [L69] long __cil_tmp61 ; [L70] long __cil_tmp62 ; [L71] long __cil_tmp63 ; [L72] long __cil_tmp64 ; [L76] s__state = initial_state [L77] blastFlag = 0 [L78] tmp = __VERIFIER_nondet_int() [L79] cb = 0 [L80] ret = -1 [L81] skip = 0 [L82] tmp___0 = 0 [L83] COND TRUE s__info_callback != 0 [L84] cb = s__info_callback [L90] s__in_handshake ++ [L91] COND FALSE !(tmp___1 - 12288) [L97] COND TRUE 1 [L99] state = s__state [L100] COND TRUE s__state == 12292 [L202] s__new_session = 1 [L203] s__state = 4096 [L204] s__ctx__stats__sess_connect_renegotiate ++ [L209] s__server = 0 [L210] COND TRUE cb != 0 [L214] __cil_tmp55 = s__version - 65280 [L215] COND FALSE !(__cil_tmp55 != 768) [L220] s__type = 4096 [L221] COND FALSE !(s__init_buf___0 == 0) [L233] COND FALSE !(! tmp___4) [L237] COND FALSE !(! tmp___5) [L241] s__state = 4368 [L242] s__ctx__stats__sess_connect ++ [L243] s__init_num = 0 [L515] COND FALSE !(! s__s3__tmp__reuse_message) [L532] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 4096) [L109] COND FALSE !(s__state == 20480) [L112] COND FALSE !(s__state == 4099) [L115] COND TRUE s__state == 4368 [L247] s__shutdown = 0 [L248] ret = __VERIFIER_nondet_int() [L249] COND TRUE blastFlag == 0 [L250] blastFlag = 1 [L252] COND FALSE !(ret <= 0) [L255] s__state = 4384 [L256] s__init_num = 0 [L257] COND TRUE s__bbio != s__wbio [L515] COND FALSE !(! s__s3__tmp__reuse_message) [L532] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 4096) [L109] COND FALSE !(s__state == 20480) [L112] COND FALSE !(s__state == 4099) [L115] COND FALSE !(s__state == 4368) [L118] COND FALSE !(s__state == 4369) [L121] COND TRUE s__state == 4384 [L263] ret = __VERIFIER_nondet_int() [L264] COND TRUE blastFlag == 1 [L265] blastFlag = 2 [L267] COND FALSE !(ret <= 0) [L270] COND FALSE !(\read(s__hit)) [L273] s__state = 4400 [L275] s__init_num = 0 [L515] COND FALSE !(! s__s3__tmp__reuse_message) [L532] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 4096) [L109] COND FALSE !(s__state == 20480) [L112] COND FALSE !(s__state == 4099) [L115] COND FALSE !(s__state == 4368) [L118] COND FALSE !(s__state == 4369) [L121] COND FALSE !(s__state == 4384) [L124] COND FALSE !(s__state == 4385) [L127] COND TRUE s__state == 4400 [L279] COND FALSE !(s__s3__tmp__new_cipher__algorithms - 256) [L282] ret = __VERIFIER_nondet_int() [L283] COND TRUE blastFlag == 2 [L284] blastFlag = 3 [L286] COND FALSE !(ret <= 0) [L290] s__state = 4416 [L291] s__init_num = 0 [L515] COND FALSE !(! s__s3__tmp__reuse_message) [L532] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 4096) [L109] COND FALSE !(s__state == 20480) [L112] COND FALSE !(s__state == 4099) [L115] COND FALSE !(s__state == 4368) [L118] COND FALSE !(s__state == 4369) [L121] COND FALSE !(s__state == 4384) [L124] COND FALSE !(s__state == 4385) [L127] COND FALSE !(s__state == 4400) [L130] COND FALSE !(s__state == 4401) [L133] COND TRUE s__state == 4416 [L295] ret = __VERIFIER_nondet_int() [L296] COND TRUE blastFlag == 3 [L297] blastFlag = 4 [L299] COND FALSE !(ret <= 0) [L302] s__state = 4432 [L303] s__init_num = 0 [L304] COND FALSE !(! tmp___6) [L515] COND FALSE !(! s__s3__tmp__reuse_message) [L532] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 4096) [L109] COND FALSE !(s__state == 20480) [L112] COND FALSE !(s__state == 4099) [L115] COND FALSE !(s__state == 4368) [L118] COND FALSE !(s__state == 4369) [L121] COND FALSE !(s__state == 4384) [L124] COND FALSE !(s__state == 4385) [L127] COND FALSE !(s__state == 4400) [L130] COND FALSE !(s__state == 4401) [L133] COND FALSE !(s__state == 4416) [L136] COND FALSE !(s__state == 4417) [L139] COND TRUE s__state == 4432 [L311] ret = __VERIFIER_nondet_int() [L312] COND TRUE blastFlag == 4 [L543] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 135 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.4s, OverallIterations: 8, TraceHistogramMax: 6, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1262 SDtfs, 454 SDslu, 706 SDs, 0 SdLazy, 622 SolverSat, 78 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=447occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 23 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 582 NumberOfCodeBlocks, 582 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 464 ConstructedInterpolants, 0 QuantifiedInterpolants, 54396 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 316/316 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...